Sports diagnostics is a series of procedures that seek to define as clearly as possible the characteristics of athletes in order to optimize sports training. The aim of this study is to determine whether there is functional muscle imbalance front kinetic chain in football players with respect to the dominant and nondominant sides. The study used a sample of 52 healthy professional soccer players seniors from HNK Rijeka and FK Titograd. The average age of the team is 22.89 ± 5.11; weight 76.58 ± 6.32 kg and height 182.30 ± 5.82 cm. The method we used in the study is tensiomyography (TMG). The variables used in are: contraction time (𝑇𝑐), maximal displacement of the muscle belly (𝐷𝑚) on tested muscles: tibialis anterior (TA), rectus femoris (RF), vastus lateralis (VL), vastus medialis (VM), rectus abdominis RA. The results obtained indicate that there is no functional muscle imbalance in front kinetic chain with cosidering to the dominant and non-dominant sides. Despite the well-known thinking of soccer experts that unilateral activities is predominant in soccer and though that these unilateral activities causes bilateral imbalances. By more detailed study of the structural and anatomical analysis of the soccer game we realized that the soccer game use both sides of the locomotor system equally. From obtained results we can conclude that bilateral functional muscle imbalance of the anterior kinetic chain is a rarity. Although it is a rarity, it exists in certain number of soccer players, and as such we can prevent it with the help of functional preventive training. With the help of the obtained TMG results, a general (or individualized) prevention program for soccer players is created with the aim of injury prevention.